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AII-1002-11899
Well documentedThree or more independent publishers report the core facts.

Perplexity's Comet browser faces copyright lawsuits and security breaches

Perplexity faces copyright infringement lawsuits from multiple media organizations while its Comet AI browser reportedly exposes user security vulnerabilities. The company launched a Comet Plus revenue-sharing subscription to address copyright concerns, but separately encountered significant security issues affecting user data.

25 August 2025 · Perplexity · Intellectual property and appropriation
25 August 2025
AII-1002-118995 sources ↓
Quick facts
Category
Intellectual property and appropriation
Country
Japan
Source
36氪:关注互联网创业
Date
25 August 2025
Drafted by
Raidu Incident Detection

What happened

Perplexity faced multiple copyright infringement lawsuits from Japanese media organizations including Yomiuri Shimbun and Asahi Shimbun, which alleged the company violated copyright law through reproduction and public transmission rights.

The Comet browser was reported to expose user security vulnerabilities, reportedly allowing account takeover in under 150 seconds through access to email verification codes and personal data.

Perplexity launched a Comet Plus subscription service priced at US$5 monthly, allocating 80% of revenue to publishers and media outlets to address copyright concerns, with an initial revenue pool of US$42.5 million.

Reported impact

Publishers and media organizations reported unauthorized access to their content through Comet Agent's operations, which were not covered under existing agreements between Perplexity and content providers.

Users of the Comet browser faced risks of account compromise and data theft through security vulnerabilities affecting their email verification codes and personal information.

Index analysis

The copyright disputes centered on whether Perplexity's scraping and use of publisher content constituted infringement of reproduction and public transmission rights under Japanese law.

Security researchers identified vulnerabilities in the Comet browser's handling of user authentication and verification processes that could allow unauthorized access to user accounts.

Governance controls

Perplexity implemented a revenue-sharing model through Comet Plus to compensate publishers, though the US$5 monthly subscription fee remained significantly lower than traditional media pricing of US$20–US$30, raising questions about publisher acceptance of the arrangement.

Classification

Category
Intellectual property and appropriation
Industry
Consumer services
Country
Japan
Harm status
Actual harm
Intent
Unknown
Timing
Post-deployment
Harm types
Economic or property
Harmed
Business, Consumers
Failure modes
Unauthorised scraping
Consequences
Litigation
AI systems
Comet, Comet Agent
Regulations
GDPR (cited)

Sources and evidence

This record was researched and written by the Index, based on the following original reporting.

36氪:关注互联网创业
危,AI浏览器被曝大漏洞,用户邮箱验证码扒精光,盗号仅需150秒-36氪
26 August 2025
Yahoo News
Perplexity 推 Comet Plus 訂閱服務:用家月費 US$5,出版商將獲 8 成分潤
26 August 2025
Udnemoney聯合理財網
日經朝日控Perplexity AI侵權 各求償22億日圓 | 國際焦點 | 國際 | 經濟日報
26 August 2025
Liberty Times Net
日經朝日控Perplexity AI侵權 各求償22億日圓 - 國際 - 自由時報電子報
26 August 2025
凤凰网(凤凰新媒体)
危!AI浏览器被曝大漏洞,用户邮箱验证码扒精光,盗号仅需150秒
26 August 2025
May 2026Perplexity sued by Japanese newspapers for unauthorized article useAllegedIntellectual property and appropriation日本経済新聞ITmediaOct 2025Reddit sues Perplexity AI and data scrapers for unauthorized data scrapingAllegedIntellectual property and appropriationThe Times of IndiaFinancial Times NewsReuters+3Oct 2025OpenAI's Atlas Browser Bypasses Paywalls and Avoids Content From Publishers Suing OpenAIReportedIntellectual property and appropriationFuturismMashable SEAAug 2025Asahi and Nikkei sue Perplexity for copyright infringementAllegedIntellectual property and appropriation茨城新聞社毎日新聞日テレNEWS NNN+5Aug 2025Yomiuri Shimbun sues Perplexity AI for unauthorized use of news contentAllegedIntellectual property and appropriation毎日新聞朝日新聞デジタルITmedia+4